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  • Ingestion of Microplastics in the Juvenile Black Rockfish (Sebastes melanops) from Oregon Coastal Sampling Sites

    Creator:
    Arnold, Madison A.
    Abstract:
    Microplastics (<5mm) are a ubiquitous environmental pollutant that have the potential to cause significant harm in many fish species. Therefore, understanding the quantities at which they are being consumed by living organisms is crucial for characterizing risk. There are currently gaps in the microplastic literature regarding microplastic data from finfish...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    fulfillment of the requirements for the degree of Baccalaureate of Science in BioResource Research 2021

  • Fungal Photonics

    Creator:
    Spafford, Jasper
    Abstract:
    The spalting fungus Scytalidium cuboideum secretes a red pigment that produces naphthoquinonic crystals that are a photonic material candidate. The molecule can pack together in different configurations resulting in amazingly different optical properties. I developed a procedure (slowly evaporating the solvent) to preferentially grow two of these configurations, which have...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    Prof. Robinson’s lab at OSU Wood Science and Engineering Department

  • Optoelectronic Properties of a Novel Fungi-derived Pigment

    Creator:
    Wiesner, Cameron
    Abstract:
    In industry, there is considerable interest in finding sustainable, renewable materials for use in electronic devices. Pigments derived from spalting fungi are of particular interest due to their longevity in diverse environmental conditions. The focus of my project was to characterizethe properties of a novel, fungi-derived pigment, and to discover...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    | Wood Science and Engineering S. ganodermopthorum​ was cultivated under laboratory conditions by Dr

  • Practical Mechanically Interlocked Molecules: A Model of Gas Adsorption in Metal OrganicFrameworks Harboring Rotaxane Molecular Shuttles

    Creator:
    Carney, Jonathan
    Abstract:
    Metal organic frameworks(MOFs) are a class of crystalline materials utilized in gas storage, chemicalsensing, and other engineering applications. Recently chemists have begun synthesizing MOFs withmoving parts in order to further these applications. A wide array of dynamic MOFs have been created andtheorized. Among them is the interlocking of a ring...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    in gas storage, chemical sensing, and other engineering applications. Recently chemists have begun

  • Vegetative effects of RNAi-suppression of the poplar homolog of LEAFY in the field

    Creator:
    Jacobson, Jeremy
    Abstract:
    Due to public and regulatory restrictions, genetic containment technology is critical for research and development of transgenic trees in forestry. A multi-year field trial demonstrated that the RNAi-LFY construct successfully induces sexual sterility in 6K10 poplar (Populus alba) without visible effects on vegetative development. However, its limited number of replicates...
    Resource Type:
    Undergraduate Thesis and Presentation
    Full Text:
    Genetic engineering may be used to provide several benefits to plantations Pest management Insertion

  • Toxicity and Mutagenicity of Polycyclic Aromatic Hydrocarbons in Contaminated Soils using Mammalian In Vitro Assay

    Creator:
    Luker, George W.
    Abstract:
    There exists a growing need to establish a better in vitro model for evaluating PAH toxicity and carcinogenicity and to improve assessments of risk to human health, especially to the complex mixtures that exist in the environment. Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental contaminants due to the incomplete combustion...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    of the requirements for the degree of Baccalaureate of Science in BioResource Research

  • Testing the effectiveness of the λ insulator in hybrid poplar

    Creator:
    Feng, Mu
    Abstract:
    Genetic engineering techniques allow scientists to create plants with desired traits. However, there is unwanted variability in transgene expression due to enhancer-promoter interactions and the influence from genetic elements near the insertion site of the transgene, which integrates into a random location in the genome. In an attempt to reduce...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    to interpret experimental results and how to communicate in science. This project would not have

  • Biochar as a cover for dairy manure lagoons: reducing odor and gas emissions while capturing nutrients

    Creator:
    Dougherty, Brian W.
    Abstract:
    Liquid manure lagoons are known to be sources of odor and environmentally damaging gas emissions. Land application of the manure slurry after storage can lead to detrimental nutrient runoff and leaching. Floating lagoon covers (biocovers) are one option for reducing emissions, but to date they have only been used to...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    , production temperature, pH, and particle size distribution for use as a biocover material. 2

  • Biochar as a cover for dairy manure lagoons: reducing odor and gas emissions while capturing nutrients

    Creator:
    Dougherty, Brian
    Abstract:
    Liquid manure lagoons are known to be sources of odor and environmentally damaging gas emissions. Land application of the manure slurry after storage can lead to detrimental nutrient runoff and leaching. Floating lagoon covers (biocovers) are one option for reducing emissions, but to date they have only been used to...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    , production temperature, pH, and particle size distribution for use as a biocover material. 2

  • Optical Tweezer Trapping of Colloidal Polystyrene and Silica Microspheres

    Creator:
    Peters, Kyle C.
    Abstract:
    Optical trapping is a tool used throughout a wide variety of disciplines rang- ing from precisely probing and manipulating sub-micron organisms in biol- ogy to analyzing fundamental charge transfer in colloidal physics. This thesis presents research involving optical tweezer force measurements of polystyrene and silica microspheres. In addition, preliminary work...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    the degree of Baccalaureate of Science in Physics Spring 2013 ii Abstract Optical trapping is